Poweramp POWERHOOK SERIES - Manual (Page 31)

1. Adjust the lower vertical limit of hook operating
range if necessary.
A. Locate the proximity switch that is mounted in
the bracket located on the trunnion for the hook
cylinder. Locate the target for the switch. See
Figure 12.
NOTE: The position of the target in relation to the
switch will determine the lower travel limit of the hook.
When the hook lowers, the target is positioned into
the sensing area of the proximity switch. The switch
is activated when the target is sensed, at which time
Input 3 on the PLC should be ON.
At no time should the target come into direct contact
with the switch.
The typical factory set position for the target is at the
10 o’clock position looking at it from the side with the
hook lowered sensor at 12 o’clock.
See Figure 13
B. Loosen the bolt that holds the target.
C. Lower Hook: Turn the target 2-4 degrees
counterclockwise if top of the hook is greater
than 9”.
D. Raise Hook: Turn the target 2-4 degrees
clockwise if the top of the hook is less than 8”.
E. Repeat Steps C or D until the lower vertical
limit of the top of hook is 8”-9” above the apron.
When adjustments are completed hold the
target in place and tighten the bolt.
2. Test with truck/trailer or a ICC bar simulator. (The
simulator must span min of 6” past both sides of
pan)
3. Press the ENGAGE button. Truck restraint hook
should lower, extend, raise, and retract until it locks
onto the ICC bar. Power pack should then shut off.
ADJUSTMENTS
Adjust PowerHook Operating Range
A— Hook Lowered Sensor
Target Bar
B—Powerhook Hold Down
Weldment
C— Hook Lowered Sensor
Bracket
D—Flat Washer
E— Trunnion Bolt
Figure 12
4. Check lights.
-Inside Green
-Outside Red
5. Test dock leveler operation. See dock leveler
Owner’s Manual.
6. Checking of Alarm (if equipped) and Lights for
Premature Truck Departure can be accomplished
by having a truck attempt to pull away from an
engaged hook. It is not recommended due to
potential damage to RIG bars that may not be up
to current strength standards.
7. Press RELEASE button. The PowerHook should
disengage from the RIG bar and restore behind
the dock wall. Power pack should then shut off.
8. Check Lights
-Inside Light Red
-Outside Light Green
D
E
A
B
C
4111-0010 — Nov 2010 29